Tests of memory and verbal fluency were administered to 19 neurologically impaired Wilson's patients, 12 non-neurologically impaired Wilson's patients and 15 normal control subjects. Wilson's patients with neurologic disease recalled significantly fewer words on the delayed recall version of the Rey Auditory Verbal Learning Test than control subjects (p less than .05) but they showed no impairment on the recognition version of this test. On a verbal fluency test (FAS) requiring the subject to retrieve items from different categories, Wilson's patients with neurologic disease generated significantly fewer words than control subjects (p less than .01). Results suggest that retrieval memory is mildly impaired in the neurologic WD group but rate of learning and rate of forgetting is normal.